首页资源分类电源技术 > MXL1001.pdf

MXL1001.pdf

已有 460221个资源

下载专区


TI最新应用解决方案

工业电子 汽车电子 个人消费电子

文档信息举报收藏

标    签: MXL1001

分    享:

文档简介

MXL1001.pdf

文档预览

19-0286; Rev 1; 8/94 MXL1001 Precision Operational Amplifier _______________General Description The MXL1001 offers significant specification improvement over earlier precision operational amplifiers and is pincompatible with the industry-standard LT1001. Particular attention has been paid to the optimization of key parameters such as input offset voltage, common-mode rejection, and power-supply rejection. In addition, the high-performance MXL1001C commercial temperature device provides considerable cost savings when compared to equivalent grades of competing precision amplifiers. The input offset voltage of all units is less than 60µV, allowing the premium military device, the MXL1001AM, to be specified at 15µV max. Power dissipation is close to half that of the industry-standard OP-07 precision op amp, without sacrificing noise or speed performance. A useful by-product of lower dissipation is decreased warm-up drift. ________________________Applications Thermocouple Amplifiers Low-Level Signal Processing Strain Gauge Amplifiers High-Accuracy Data Acquisition __________________Pin Configuration TOP VIEW VOS TRIM 1 VOS TRIM 8 V+ 7 -IN 2 MXL1001 6 VOUT 3 +IN 4 V- TO-99 5 N.C. VOS TRIM 1 -IN 2 +IN 3 V- 4 MXL1001 DIP/SO 8 VOS TRIM 7 V+ 6 VOUT 5 N.C. ____________________________Features o Guaranteed Low Offset Voltage MXL1001AM: 15µV max MXL1001C: 60µV max o Guaranteed Low Drift MXL1001AM: 0.6µV/°C max MXL1001C: 1.0µV/°C max o Guaranteed Low Bias Current MXL1001AM: 2nA max MXL1001C: 4nA max o Guaranteed CMRR MXL1001AM: 114dB min MXL1001C: 110dB min o Guaranteed PSRR MXL1001AM: 110dB min MXL1001C: 106dB min o Low Power Dissipation MXL1001AM: 75mW max MXL1001C: 80mW max o Low Noise: 0.3µVp-p ______________Ordering Information PART MXL1001ACN8 MXL1001CN8 MXL1001ACS8 MXL1001CS8 MXL1001ACJ8 MXL1001CJ8 MXL1001ACH MXL1001CH MXL1001AMJ8 MXL1001MJ8 MXL1001AMH MXL1001MH TEMP. RANGE 0°C to +70°C 0°C to +70°C 0°C to +70°C 0°C to +70°C 0°C to +70°C 0°C to +70°C 0°C to +70°C 0°C to +70°C -55°C to +125°C -55°C to +125°C -55°C to +125°C -55°C to +125°C PIN-PACKAGE 8 Plastic DIP 8 Plastic DIP 8 SO 8 SO 8 CERDIP 8 CERDIP 8 TO-99 8 TO-99 8 CERDIP 8 CERDIP 8 TO-99 8 TO-99 __________Typical Operating Circuit R1 R3 SENSING JUNCTION REFERENCE JUNCTION R2 MXL1001 R4 R1 R3 = R2 R4 HIGH-STABILITY THERMOCOUPLER AMPLIFIER ________________________________________________________________ Maxim Integrated Products 1 Call toll free 1-800-998-8800 for free samples or literature. Precision Operational Amplifier MXL1001 ABSOLUTE MAXIMUM RATINGS Total Supply Voltage (V+ to V-) ...........................................±22V Continuous Power Dissipation .........................................500mW TO-99(H)—derate at 7.1mW/°C above +80°C CERDIP(J)—derate at 6.7mW/°C above +75°C Plastic DIP(P)—derate at 5.6mW/°C above +36°C Small Outline(S)—derate at 5mW/°C above +55°C Differential Input Voltage .....................................................±30V Input Voltage (Note 1)..........................................................±22V Duration of Output Short Circuit ....................................Indefinite Operating Temperature Ranges: MXL1001C_/AC_.................................................0°C to +70°C MXL1001M_/AM_...........................................-55°C to +125°C Junction Temperature (TJ).................................-65°C to +160°C Storage Temperature Range .............................-65°C to +150°C Lead Temperature (soldering, 10sec) .............................+300°C Note 1: For supply voltages less than ±22V, the absolute maximum input voltage is equal to the supply voltage. Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS (VS = ±15V, TA = +25°C, unless otherwise noted.) PARAMETER SYMBOL CONDITIONS MXL1001AM MXL1001AC MIN TYP MAX MXL1001M MXL1001C UNITS MIN TYP MAX Input Offset Voltage VOS (Note 2) MXL1001AM MXL1001AC 7 15 10 25 18 60 µV 18 60 Long-Term Input Offset Voltage Stability VOS/Time (Note 3) 0.2 1.0 0.3 1.5 µV/ Month Input Offset Current Input Bias Current Input Noise Voltage Input Noise Voltage Density Input Resistance (Differential Mode) IOS IB eN p-p eN RIN 0.1Hz to 10Hz (Note 4) fO = 10Hz (Note 4) fO = 100Hz (Note 4) fO = 1000Hz (Note 4) (Note 5) 0.3 ±0.5 0.3 10.3 10.0 9.6 2.0 ±2.0 0.6 18.0 13.0 11.0 30 100 0.4 ±0.7 0.3 10.5 10.0 9.8 3.8 ±4.0 0.6 18.0 13.0 11.0 nA nA µVp-p nV/√Hz 15 80 MΩ Input Voltage Range Common-Mode Rejection Ratio Power-Supply Rejection Ratio Large-Signal Voltage Gain Output Voltage Swing Slew Rate Closed-Loop Bandwidth Power Consumption IVR CMRR PSRR AVO VO SR BW PD VCM = ±13V VS = ±3V to ±18V RL ≥ 2kΩ, VO = ±12V RL ≥ 1kΩ, VO = ±10V RL ≥ 2kΩ RL ≥ 1kΩ RL ≥ 2kΩ (Note 4) AVCL = +1V (Note 4) VS = ±15V, no load VS = ±3V, no load ±13 ±14 114 126 110 123 450 800 300 500 ±13.0 ±14.0 ±12.0 ±13.5 0.1 0.25 0.4 0.8 46 75 4 6 ±13 ±14 110 126 106 123 400 800 250 500 ±13.0 ±14.0 ±12.0 ±13.5 0.1 0.25 0.4 0.8 48 80 4 8 V dB dB V/mV V V/µs MHz mW Note 2: MXL1001A grade VOS is measured one minute after application of power. For all other grades VOS is measured approximately 0.5 seconds after application of power. Note 3: Long-Term Input Offset Voltage Stability refers to the average trend line of VOS vs. Time over extended periods after the first 30 days of operation. Excluding the initial hour of operation, changes in VOS during the first 30 operating days are typically 2.5µV. Parameter is sample tested. Note 4: Sample tested. Note 5: Guaranteed by design. 2 _______________________________________________________________________________________ MXL1001 Precision Operational Amplifier ELECTRICAL CHARACTERISTICS (VS = ±15V, -55°C ≤ TA ≤ +125°C, unless otherwise noted.) PARAMETER SYMBOL CONDITIONS Input Offset Voltage Average Temperature Coefficient of Input Offset Voltage Input Offset Current Input Bias Current Input Voltage Range Common-Mode Rejection Ratio Power-Supply Rejection Ratio Large-Signal Voltage Gain Output Voltage Swing Power Dissipation VOS TCVOS IOS IB IVR CMRR PSRR AVO VO PD (Note 6) VCM = ±13V VS = ±3V to ±18V RL ≥ 2kΩ, VO = ±10V RL ≥ 2kΩ No load MXL1001AM MIN TYP MAX 30 60 MXL1001M MIN TYP MAX 45 160 UNITS µV 0.2 0.6 0.3 1.0 µV/°C 0.8 4.0 ±1.0 ±4.0 ±13 ±14 110 122 104 117 300 700 ±12.5 ±13.5 55 90 1.2 7.6 ±1.5 ±8.0 ±13 ±14 106 120 100 117 200 700 ±12.5 ±13.5 60 100 nA nA V dB dB V/mV V mW ELECTRICAL CHARACTERISTICS (VS = ±15V, 0°C ≤ TA ≤ +70°C, unless otherwise noted.) PARAMETER SYMBOL CONDITIONS Input Offset Voltage Average Temperature Coefficient of Input Offset Voltage VOS TCVOS (Note 6) MXL1001AC MIN TYP MAX 20 60 MXL1001C MIN TYP MAX 30 110 UNITS µV 0.2 0.6 0.3 1.0 µV/°C Input Offset Current Input Bias Current Input Voltage Range Common-Mode Rejection Ratio Power-Supply Rejection Ratio Large-Signal Voltage Gain Output Voltage Swing Power Dissipation IOS IB IVR CMRR PSRR AVO VO PD VCM = ±13V VS = ±3V to ±18V RL ≥ 2kΩ, VO = ±10V RL ≥ 2kΩ No load 0.5 3.5 ±0.7 ±3.5 ±13 ±14 110 124 106 120 350 750 ±12.5 ±13.8 50 85 0.6 5.3 ±1.0 ±5.5 ±13 ±14 106 123 103 120 250 750 ±12.5 ±13.8 55 90 nA nA V dB dB V/mV V mW Note 6: MXL1001A grade offset voltage is measured one minute after application of power. For all other grades VOS is measured 0.5 seconds after power on. _______________________________________________________________________________________ 3 MXL1001 Precision Operational Amplifier __________Applications Information The MXL1001 series devices are pin-compatible with the OP-07, OP-05, 725, 108A or 101A amplifiers. The MXL1001 amplifiers can be used to upgrade older designs using these devices, with or without removal of external frequency compensation or nulling components. The MXL1001 can also be used in 741, LF156 or OP-15 applications provided the nulling circuitry is removed. The MXL1001 is specified over a wide supply voltage range from ±3V to ±18V. Operation with lower supplies is possible down to ±1.2V (two NiCd batteries), however, at this level the device is stable only in closed-loop gains of +2 and above (or inverting gain of one or higher). Unless proper care is exercised, thermocouple effects caused by temperature gradients across dissimilar metals at the input terminal connections, can exceed the inherent offset-voltage drift of the amplifier. Air currents over the device leads should be minimized, package leads should be short, and the two input leads should be as close together as possible and maintained at the same temperature. Offset-Voltage Adjustment The input offset voltage of the MXL1001, and its temperature drift, are minimized by zener-zap trimming at the wafer level. If further nulling of VOS is required, this can be performed using a 10kΩ or 20kΩ potentiometer with no degradation of VOS drift with temperature. Trimming to a value other than zero creates a drift of (VOS/300)µV/°C; i.e., if VOS is adjusted to 300µV, the change in drift will be 1µV/°C. The adjustment range with a 10kΩ or 20kΩ potentiometer is approximately ±2.5mV. If less adjustment range is needed, the sensitivity and resolution of the offset nulling can be improved by using a potentiometer of lower ohmic value in conjunction with fixed resistors. INPUT 1 20k 2 8 7 MXL1001 6 3 4 V- Figure 1. Optional Offset Nulling Circuit V+ OUTPUT ___________________Chip Topography VOS TRIM VOS TRIM V+ VOUT 0.076" (1.93mm) V- VOS TRIM -IN +IN 0.102" (2.59mm) SUBSTRATE IS CONNECTED TO V- Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 4 ___________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600 © 1994 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.

Top_arrow
回到顶部
EEWORLD下载中心所有资源均来自网友分享,如有侵权,请发送举报邮件到客服邮箱bbs_service@eeworld.com.cn 或通过站内短信息或QQ:273568022联系管理员 高进,我们会尽快处理。